Please use the Convention GM event form below to submit any event(s) you’d like to run at our next annual Coscon or Sibcon gaming conventions.
Once received, we will post it on Warhorn.net and give you credit towards discounted or free admission through our GM Bonuses Program.
Game Mastering a game at COS conventions is always greatly appreciated by everyone involved! It allows all our members, including our volunteer GMs, a great opportunity to play a variety of popular, new, and vintage out of print games.
If you have any questions about the convention or the events run, please feel free to ask them on our COS Conventions Facebook Page or Contact Us!